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The moon is slowly shrinking over time, which is causing wrinkles in its crust and moonquakes, according to photos captured by NASA's Lunar Reconnaissance Orbiter.Unlike Earth, the moon doesn't have tectonic plates. Instead, as the moon's interior has cooled over the last several hundred million years, it has caused the surface to wrinkle as it shrinks. Unlike the flexible skin of a grape when it shrinks into a raisin, the moon's brittle crust breaks. This creates stair-step cliffs called thrust faults as part of the crust is pushed up and over another close part of the crust.There are now thousands of cliffs scattered across the moon's surface, averaging a few miles long and tens of yards high. The orbiter has taken photos of more than 3,500 of them since 2009. In 1972, Apollo 17 astronauts Eugene Cernan and Harrison Schmitt had to ascend one of these cliffs, the Lee-Lincoln fault scarp, by zig-zagging the lunar rover over it.Today the moon is 50 meters "skinnier" because of this process. And as it shrinks, the moon actively produces moonquakes along the faults. Researchers re-analyzed seismic data they had from the moon to compare with the images gathered by the orbiter.Data from the seismometers placed on the moon during the Apollo 11, 12, 14, 15 and 16 missions revealed 28 moonquakes recorded between 1969 and 1977. Researchers compared the location of the epicenters for those quakes with the orbiter imagery of the faults. At least eight of the quakes occurred due to activity along the faults. This rules out the possibility of asteroid impacts or rumblings from the moon's interior.This means that the Apollo seismometers recorded the moon shrinking, the researchers said. The study of Apollo seismic data and analysis of more than 12,000 of the orbiter's photos were published Monday in the journal 1841

Thanksgiving is here and with it comes turkey, stuffing and all sorts of desserts and side dishes. But while it's OK for humans to indulge in those items, the same may not be true for your furry friend.Here's a roundup of what you can give Fido, and what you should keep away from your four-legged friend.Turkey 323

The Dow Jones Industrial Average had its largest single-day drop in the market's history on Thursday.The Dow finished the day down nearly 1,193 points. The previous largest one-day drop for the Dow was on Feb. 5, 2018, when the index lost 1,175 points.The Dow has lost more than 3,500 points since Friday, marking one of the worst weeks for the market in the last calendar year. Three of the five largest single-day drops in Dow Jones history took place this week.Stocks have been falling amid fears of a worldwide slowdown due to the spread of COVID-19, better known as the coronavirus. Though 607

The dreaded parking ticket: You see them placed on vehicles all the time. But Washington, D.C. residents may starting seeing more — from their neighbors, not just traffic officers.Councilman Charles Allen created the idea of DC's citizens handing out tickets. About 80 people around the district would be trained and certified to issue tickets, and use a mobile app to take a photo of the violation. The ticket would be issued in the postal mail."When someone is creating an immediate safety hazard there needs to be a consequence," Allen said. "So having the ability to have more essentially enforcement take place, all those little violations that are happening all the time, that impact our safety, that make our streets less safe — to be able to have enforcement be magnified is part of having safer streets."Residents aren't so sure about the idea. Some think the idea of a citizen giving another a ticket could create violence. Others say they like that council members are at least trying to think of a plan to help with parking woes in the nation's capital.If passed, the plan would go through a trial period. The idea is part of a larger bill to make streets safer after a series of deadly crashes involving pedestrians and cyclists. The proposal includes decreasing speed limits, adding new sidewalks and bike lanes as well as better crosswalk markings.A vote is not expected until later this year. 1420

The Music City of Nashville will go silent today for #BlackoutTuesday. It’s all part of an effort to show solidarity in the aftermath of George Floyd’s death. Industry leaders say it’s time to reconnect with the community in the wake of Floyd’s death. Musicians and artists everywhere will not release any music or profit off any business for the day. Event organizers say the music industry has benefited so much from African American culture – that it's only fair that today be a day for listening. Some familiar names participating in this, the Country Music Hall of Fame and Museum, Nashville’s Big Machine Label Group, Black River entertainment and Big Loud Records.The Listening Room Cafe is even canceling all events today to focus on change instead. Founder and president Chris Blair Schoessel posted on his Facebook, saying the decision was important.“I hope, and we hope, that we can begin the lead with love and find unity and justice for all. I love you guys. I love you,” he said. You’ll also notice that this movement is spreading fast on social media. The hashtag #TheShowMustBePaused is going viral. 1127